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Measurements released in late September showed the Niño 3.4 region hitting a daily sea surface temperature anomaly of 3.11C, eclipsing the previous high of 3.08C set in November 2015 during what had been one of the strongest events on record. A Carbon Brief analysis found the anomaly occurred months ahead of the typical December peak, with readings since early June consistently exceeding those of prior El Niño years at the same stage. Scientists tracking the pattern through NOAA’s Optimum Interpolation Sea Surface Temperature dataset have noted its exceptional pace, which has already triggered shifts in global atmospheric circulation.[[1]](https://www.carbonbrief.org/analysis-super-el-nino-reaches-remarkable-all-time-record)
Experts have noted that the Super El Niño sets another record as it strengthens to ‘unprecedented levels’, a characterization echoed across multiple assessments as the event continues building toward a probable peak later this year. The National Oceanic and Atmospheric Administration has raised its forecast to an 83 percent chance that the episode will exceed all events since 1950, with some models projecting anomalies nearing 4C by December. Data from the Copernicus Climate Change Service separately recorded global average sea surface temperatures reaching 21.1C in August, a mark influenced by the developing Pacific warmth layered atop long-term ocean heating.[[2]](https://www.bloomberg.com/news/articles/2026-08-24/highest-ever-ocean-temperature-measured-as-super-el-nino-forms)
Impacts have begun materializing across several continents, with Peru registering nonstop temperature records, Chile experiencing deadly storms and Hawaii facing destructive hurricanes linked to the altered patterns. The Seattle Times reported that the anomaly, which stands more than one degree higher than comparable points in the 1997 and 2015 events, has already contributed to floods, heat domes and disrupted precipitation in parts of the United States. Such extremes align with historical El Niño behavior but arrive with greater intensity due to the record baseline warmth, according to researchers at the University of Miami Rosenstiel School.[[3]](https://www.seattletimes.com/nation-world/the-ongoing-el-nino-has-officially-reached-record-levels/)
Economic sectors face mounting pressure from the associated weather shifts, including reduced shipping capacity through the Panama Canal after rainfall fell 34 percent below average between May and August. The Wall Street Journal detailed how the resulting drop in reservoir levels has forced operators to limit daily transits, tightening supply chains for commodities moving between oceans. Copper production in Chile and Peru has encountered additional risks from drought and flooding, while fisheries in the eastern Pacific have seen sharp declines, pushing prices for fish meal to records and boosting demand for alternative proteins.[[4]](https://archive.li/2026.08.29-180246/https://www.wsj.com/economy/global/the-strongest-el-nino-in-a-generation-is-wreaking-havoc-on-global-economy-b6fece16)
Agricultural output in vulnerable regions stands exposed, with Reuters reporting that dryness in Vietnam and Indonesia threatens robusta coffee yields and West African cocoa farmers contend with erratic rain patterns. A Bloomberg Economics study cited in related coverage projects consumer price increases of nearly two percentage points in parts of Southeast Asia following El Niño-driven droughts, compounding existing stresses on food security. The World Food Programme has estimated the current pattern could add nearly 49 million people to those facing acute hunger across 45 countries, building on effects seen in the 2023-2024 episode that influenced more than 60 million.[[5]](https://www.reuters.com/markets/econ-world/what-el-nio-could-cost-world-2026-08-20/)
Forecasters expect the pattern to persist through the Northern Hemisphere winter, with NOAA placing a 90 percent probability on a very strong event that could further amplify global temperature records already set in 2024. Reconstructions of 19th-century data suggest the developing anomaly may rival or exceed the 1877-78 event, which contributed to widespread famine, though modern observations benefit from vastly improved satellite and buoy coverage. Ongoing monitoring by the Copernicus service and national meteorological agencies will refine projections as the season advances.[[6]](https://www.bostonglobe.com/2026/10/08/metro/2026-super-el-nino-strength-record/)
